from flask import current_app
from flask import g
from flask import session
import functools
from info.models import User


def do_index_class(index):
    if index == 1:
        return "first"
    elif index == 2:
        return "second"
    elif index == 3:
        return 'third'
    else:
        return ''


def user_login_data(view_func):
    @functools.wraps(view_func)
    def wrapper(*args, **kwargs):
        user_id = session.get('user_id', None)

        # 查询user_id三,获取用户数据
        user = None
        if user_id:
            try:
                user = User.query.get(user_id)
            except Exception as e:
                current_app.logger.error(e)
        g.user = user

        return view_func(*args, **kwargs)
    return wrapper